Perhaps you should try some spelling variations:
van nang » van quang, van ban, van dong
van hanh » van thanh, ban hanh, van anh
truc van » truc va, thuc van, truc ban
tu sach » thu sach, su sach, te sach
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
ve cai » va cai, ve cac, ve tai
v nang » va nang, vu nang, voi nang
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((v nang) or (van nang)) xa hoi. hieu ((ve cai) or (va cac)) truc van hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((v nang) OR (van nang)) xa hoi. hieu ((ve cai) OR (va cac)) truc van hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) or (van nang)) xa hoi. hieu ((ve cai) or (va cac)) truc van hanh di cua te*.